Loose-leaf binder.



No. 853,975. PATBNTED MAY 21, 1901.

' T. E. HEETER.

LOOSE, LEAF BINDER. APPLICATION FILED APR.30.1906.

.To all whom it may concern.-

UNITED STATES PATENT OFFICE.

THOMAS E. HEETER, OF MAPLEWOOD, MISSOURI, ASSIGN OR TO SIEBER & TRUSSELL MAN UFAOTURIN G COMPANY, A CORPORATION OF MISSOURI.

LOOSE-LEAF BINDER.

Specification of Letters Patent.

Patented May 21, 1907.

Application filed April 30, 1906. Serial No. 314,429.

Be it known that I, THOMAS E. I-IEETER, a citizen of the United States, and a resident of Maplewood, county of St. Louis, and State of Missouri, have invented certain new and useful Improvements in Loose Leaf Binders, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

-This invention relates to loose leaf binders of the so-called hinge back type its object being to provide a simple, efficient and easily controlled lockfor binders of this character The invention consists in a latch look located at each end of the binder, and controllable by means of the hinge rod,'the invention being illustrated in the accompanying drawings, in which Figure 1 is a plan view of the frame of the binder closed; Fig. 2 is a sectional view on the line 22 of Fig. 1; and Figs. 3 and 4 are end views, one showing the binder closed and the other showing it open.

The binder comprises a pair of angle plates 10, 11, hinged together along their meeting-edges by means of a pintle or rod 12. Each of the angle plates is provided with end flanges 13, 14., which meet when the binder is closed.

To one of each pair of the end flanges is pivoted a latch hook 15, 16, adapted to engage a stud 17 set Each of the latches 15, 16, has a laterally projecting arm 18, 19, with which is engaged a crank arm 20, 21, fixed upon the hinge pintle 12. I This engagement preferably takes thesimple form of a slot, as 22, within which the crank arm loosely fits. One or both of thecrank arms 20, 21, is provided with a thumb wing 23, by means of which it may be readily moved for the purpose of disengaging the' latches from their studs.

A suitable spring is provided for throwing the latches down into the stud-engaging position. As shown suoh a spring, 24, is secured to and coiled about the hinge pintle 12, one end being in engagement with one of the angle plates, as 10. The usual sheet-holding arches 25, 26, are fixed in the side flanges of the angle plates.

The construction shown and described beb in the companion flange provides a secure lock at both ends of the binder, with'means for controlling the two locks simultaneously and from either end of the binder. This simultaneous control is obtained without the multiplication of parts and without encumbering the chamber of the binder, which it is desired to leave free to accommodate the inner ends of the sheets to ound.

I claim as invention 1. In a loose leaf binder, in combination, a pair of binder plates hinged together, looks at both ends of the plates, and operative connection between the pintle of the hinge and the two locks.

2. In a loose leaf binder, in combination, a

pair of binder plates hinged together, a hook at each end of the binder for locking the plates together, and crank arms on the hinge pintle one engaging each hook to oscillate the same.

3. In a loose leaf binder, in combination, a pair of binder plates hinged together, a latchhook pivoted to one plate and engaging the other and having a lateral arm, and a crank arm fixed on the hin e pintle and operatively engaging the hoo arm.

4. In a loose leaf binder, in combination, a pair of binder plates hinged together, a latchhook pivoted toone plate and engaging the other and having a lateral arm, and a crank arm fixed on the hinge pintle and operatively engaging the hook arm and having a thumb win 5. In a loose leaf binder, in combination, a pair of binder plates of hooks, one at each end of the binder for locking the plates together, a slotted arm projecting laterally from each hook, and a .crank arm fixed on the hinge pintle at each end thereof and fitting within the slot of the adjacent hook arm.

6. In a loose leaf binder, in combination, a pair of binder plates hinged together, and means operatively connected with the hinge pintle for locking the binder.

THOMAS E. HEETER.

hinged together, a pair v 

